Android 2.2.1 is out, breaks 1-click root

Google is pushing out Android 2.2.1, build number: frg83 to Nexus One users over the air, and while we love us some updates, you may want hold on before riding this wave. Users over at the xda-developers forum and around the web are revealing a couple issues with this one:

prevents you from using unlock gesture for Exchange (must use numeric unlock)

issues with Swype and Swiftkey not working properly

We aren’t sure what other breaks/fixes this update brings yet, so it’s uncertain if the positives out-weight the negatives. You may want to visit the forum discussion over at xda-developers beforehand. If you still want the update anyways, hit the jump for instructions on getting the update on your Nexus One now.

(FYI: user Devastatin states this update was done on an unlocked Nexus One, running stock Android)

1. Download the Android 2.2.1 firmware for the Nexus One >HERE<
2. Rename the file update.zip and copy it to your microSD card via USB. [Note: make sure the file is named update.zip and not update.zip.zip.]
3. Power down your Nexus One
4. Hold down the “Volume Down” button as you power the phone back on.
5. A screen should appear showing your phone’s system searching for various files. Scroll down to “recovery” and press the “Power” button.
6. When you see the triangle with an exclamation point symbol, press the “Power” and “Volume Up” buttons at the same time.
7. From the menu that appears, select “Apply sdcard:update.zip.”
8. When the screen displays “Install from sdcard complete” select “reboot system now” and wait for the phone to power back up. (this will take a long time)

If we manually update to 2.2.1 this way will it factory reset the phone or will it be just as the way we had it set up with all our apps and etc.

Thanks

nbecker

Breaks my outlook mail. Now it requires ‘Activate device administrator’. I’m not giving idiots at my work authorization to ‘Erase all data’ on my phone!

Tried to downgrade to 2.2. Didn’t work – I got ‘assertion failed’ when I tried to apply sdcard:update.zip.

Sean

Just got the 2.2.1 update. Phone _was_ rooted with one-touch root. Not anymore, it seems to have ‘unrooted’ my phone for me :)

For the exchange problem listed above. I use K9Mail and it works great with my exchange system at work. Might be a decent alternative for you.

Sean

Alex

My Nexus One got system update (2.2.1) ran yesterday and now I realize I no longer have root access. I try the one click root access instruction and realize the update.zip file does not exist on my sdcard. Where can I get the latest of the update.zip file manually?

Shynya

i got the same problem as nbecker..i cant even turn on wifi, it is said ‘error’ , how can i solve this problem as i dont have root access and cant downgrade or upgrade 2.2.1 again??? plz help me solve this problem..welcome to add my google Talk:shynya…Thanks a lot!!

Dwight

This is working fine on my CDMA Hero.

ldcl289

That sucks!!
That upgrade made my phone unusable!!
Don’t install it!!
Someone knows how can I downgrade to 2.2???!!
Please, somebody help me!!

Jake d

Someone please develope a root for lg vortex 2.2.1. Ill gladly pay!

erupa

i rooted my mobile but something went wrong and not the super user cant be removed from my mobile any idea’s ……. pls help me remove it

Liucha

Ok so ive got the 2.2.1 but i have a small problem… If anyone knows how to remove the pages from the main screen write to justinas98@gmail.com